Crash Fever Hatsune Miku Crossover Unit Guide
Event Overview
During the Crash Fever event period, 30 polygons will be issued to every player every day for free. The event period is from 2/2/2017-2/16-17 (two weeks) to be exact. There is a total of 7 new Vocaloid event quests: 1 Ultimate Wizard, 4 regular Wizard, and 2 Legend Quests. While the event is ongoing, there will be 3 SNS Quests, 5x Humpty Rate Quest, along with 17 new units.
They have introduced the new panel Magnet, which pulls everything of the same color at once. If there are 2 magnets of the opposite color in play, they pull at the same time. If there's 2 magnets of the same color, then only 1 pulls.
Upon clearing event quests, some units may drop with a higher bug count. This will make it easier to maximize their bug count. The collaboration units that come from the hatcher will also come with a bug count of 5. It is recommended to bring at least 1 of the collaboration units to make each quest a bit easier.
Free Unit!

With the event launch, you get a cute rabbit named Yukino that's already maxed.
Rabbit Yukino
6* Max Type: Balanced Color: Blue Health: 6000 Attack: 3528 Recovery: 3060 Cost: 45
Skill: Converts 8 panels into large crash skill panels with a skill cooldown of 8 turns.
Crash Skill: Extra-high damage to one enemy.
Ability 1: Break junk panels when leader
Ability 2: Attack power up when chaining 12 or more panels.
Yukino is a free unit that is not very useful for higher level players, but for a new player, it's a free 6* limited time unit that is only available during the duration of the collaboration.
Limited Edition Vocaloid Units

Hatsune Miku V4X
6* Max Type: Balanced Color: Green Health: 6455 Attack: 4758 Recovery: 3500 Cost: 55
Skill: Spawns a magnet that pulls in Green>Yellow>Heart>Red panels for over 4 turns, along with an immense crash panel spawn for the party for 2 turns. Her skill cooldown is 8 turns.
Crash Skill: Ultra Damage to one enemy. Ability 1: Break protected panels when leadAbility 2: Re-activates Red/Blue/Green/Yellow panels that are disabled when leader.
Tip: All of the collaboration event quests may spawn junk panels, color disabling panels, and protected panels. You can bring Miku to any of the quests regardless of her color type since she still can provide a strong role. It is recommended to have two of her in the party for Lucifer-Miku. If possible out of all the units, aim for her.

Megurine Luka V4X
6* Max Type: Balanced Color: Red Health: 6695 Attack: 4555 Recovery: 3226 Cost: 50
Skill: Luka converts junk panels and green panels into crash panels. She also has an ultra attack boost to all allies for 2 turns and spawns a magnet panel for 2 turns that pull only red and blue panels.
Crash skill: She inflicts massive damage to a single enemy.
Ability 1: She Reactivates red and blue panels that are disabled when she is in front.
Ability 2: Has the ability to destroy junk panels when she's in front.
Tips: Luka is great for the current vocaloid Murasaki Quest since the quest is composed of mainly junk panel spawn and panel lock, which will utilize Luka's full potential if present. Luka is a balanced unit with great offensive stats, she should be used after the bosses create junk panels to clean up and provide a large amount of screen clear and burst damage. Overall Luka and Miku would be the 2 top units to go for in this hatcher.

Kagamine Rin V4X
6* Max Type: Recovery Color: Yellow Health: 5453 Attack: 3880 Recovery: 4363 Cost: 50
Skill: Rin converts red and green panels to crash skill panels while giving yellow and unidentified type units an ultra defense boost for 2 turns with a 8 turn skill cooldown.
Crash Skill: High damage to a single enemy, low health recovery.
Ability 1: Reactivates yellow and heart panels that are locked when she's in front.
Ability 2: Rin can destroy damage panels safely when she's in front.
Tip: Rin is great for the Electroconcerto Hamelin Vocaloid quest because she provides great counters and a defense boost stack. In terms of use she's mainly a defensive healer, but if you use her with the other Vocaloid unit Len's skill at the same time, they pair well together and create a screen full of yellow and crash skill panels. Overall Rin can work both as a healer/defense buffer and provide the team with a good amount of support.

Kagamine Len V4X
6* Max Type: Balanced Color: Yellow Health: 6771 Attack: 4321 Recovery: 3017 Cost: 50
Skill: Len converts blue and heart panels to crash skill panels. This is along with an attack boost to yellow and unidentified units with a skill cooldown of 8 turns.
Crash Skill: Inflicts a total of two hits of high yellow and green damage to a single enemy.
Ability 1: Unlocks disabled yellow and green panels when in front.
Ability 2: Able to safely destroy damage panels while in front.
Tip: Like Rin, Len is also great for countering Hamelin's quest. Although Len is more of an offensive attacker; Since he reactivates yellow and green panels, he can also fulfill a role of a support unit if needed. He can provide 1 turn of burst damage and a defensive shield for 2 turns. As stated for Rin earlier, if you use Len's crash skill in combination with Rin's, you can create a screen full of crash skill and yellow panels that can provide a great deal of burst damage.

Megurine Luka
5* Max Type: Offensive Color: Red Health: 4230 Recovery: 2009 Cost: 30
Skill: Luka converts red to crash skill panels. She also provides massive damage to a single enemy with a skill cooldown of 9 turns.
Crash Skill: Massive damage to one enemy.
Tip: While she may not be the V4X version, she still can provide new players with panel conversion and a great amount of damage. She can also be used for 30 cost-limit quests as an attacker.

Meiko
5* Max Type: Balanced Color: Red Health: 6747 Attack: 2247 Recovery: 2037 Cost: 30
Skill: Massive damage to a single enemy, with a massive attack/defense/recovery boost to all red units for 3 turns with a skill cooldown of 9.
Crash Skill: High damage to all enemies, super effective against unidentified.
Tip: With her defense skill buff, Meiko is great for the tower quest, and can also be used for 30 cost-limit quests as a support unit.

Kaito
5* Max Type: Technical Color: Blue Health: 4577 Attack: 3348 Recovery: 2334 Cost: 30
Skill: Kaito converts Green panels to blue, provides blue units +1 to tap, and a high boost to attack for 3 turns with a skill cooldown of 8 turns.
Crash Skill: Massive damage to one enemy, with a low boost to recovery for 1 turn.
Tip: Like Meiko, Kaito can also be used mostly as a support unit with his +1 tap and panel conversion skill.

Hatsune Miku
6* Max Type: Balanced Color: Green Health: 6369 Attack: 4239 Recovery: 3738 Cost: 55
Skill: Provides an ultra boost to attack and defense to green units for 3 turns, while boosting green panel spawn rate for 2 turns. Skill cooldown time of 8 turns.
Crash Skill: Massive damage to a single enemy.
Ability 1: Damage boost against unidentified units.
Ability 2: Breaks protected panels when in front.
Tip: For this Miku unit, it's best to use her as an offensive support since she is great for buffing the party and increasing panel chains with her skill.

Hatsune Miku Append
6* Max Type: Technical Color: Green Health:7056 Attack: 5112 Recovery: 2687 Cost: 55
Skill: Miku Append creates 1 extra large super crash panel, converts 2 more panels to super crash panels, and absorbs junk panels and timer panels to boost defense for the team for 3 turns. Her Skill cooldown time is 7 turns.
Crash Skill: Extra large damage to a single enemy.
Ability 1: "Damage Up" against unidentified units.
Ability 2: Virus Immunity
Tip: Hatsune Miku Append is a pretty powerful unit, shes great at providing burst damage, and inflicting "Damage Up" against enemies in one of the event quests. She counters Virus and absorbs junk and timer panels raising her counter up to 3.

Hatsune Miku Append UA
6* Max Type: Offensive Color: Green Health: 6555 Attack: 5441 Recovery: 2540 Cost: 55
Skill: Miku's UA form converts one panel to an over sized super crash panel, converts damage panels to crash skill panels, and boost attack to unidentified units for 1 turn. Her skill cooldown time is 6 turns.
Crash Skill: Extra damage to single enemy.
Ability 1: Prevents enemy from disabling red, blue, green, and yellow panels when she is in front.
Ability 2: Destroy damage panels when in front, without taking damage.
Tip: Miku UA is a very strong attacker, she really shines in the Miku Lucifer Ultra Wizard due to her prevention of color panels being disabled. Overall her UA form is great for countering and providing damage with her Super crash panels being strong enough to wipe the screen.

Kagamine Rin
6* Max Type: Balanced Color:Yellow Health: 6360 Attack: 3939 Recovery: 3283 Cost: 50
Skill: Massive boost to attack and recovery of yellow units for 4 turns, and lowers blue panel spawn rate. Skill cooldown of 8 turns.
Crash Skill: Massive damage to a single unit.
Ability 1: Damage boost to unidentified enemies.
Tip: Rin is a great balanced support unit that is helpful for buffing the party. She's super effective against unidentified types, and great for burst healing and getting rid of attack down buffs.

Kagamine Len
6* Max Type: Recovery Color: Yellow Health: 4897 Attack: 3171 Recovery: 4610 Cost: 50
Skill: Len recovers a large amount of health, disables heart panel lock, and increases heart panel drop rate for 3 turns.
Crash Skill: Extra damage to a single enemy and recovers health.
Ability 1: Damage boost against unidentified units.
Tip: Len is a strong support healer if you don't currently own the unit Baldr. He counters heart panel lock which is great when you're in a bind and need heavy healing due to his increased heart panel drop rate for 3 turns.

Hatsune Miku V3
6* Max Type: Balanced Color: Yellow Health: 6339 Attack: 3036 Recovery: 3839 Cost: 45
Skill: She converts 3 panels to super crash panels, converts 9 panels to yellow, and raises recovery stat of all units for 2 turns Skill cooldown: 7 turns
Crash Skill: Provides extra large damage scaling with recovery stat.
Ability 1: Virus immunity
Ability 2: 3939 hp shield at the start of quest unlocked. [With a bug count of 30]
Tip: Miku V3 is an incredibly strong offensive healer. She can provide burst healing and recovery while damaging with only a 7 turn CD. She also provides an HP shield for getting through the most difficult of quests. Hatsune Miku V3 should be 1 of the first units to achieve a bug count of 99.

Kaito Hamelin
6* Max Type: Technical Color: Blue Health: 5800 Attack: 3852 Recovery: 2754 Cost: 45 Skill: Kaito converts red panels to blue bomb panels, while raising the attack of blue units for 2 turns. His skill cooldown time is 8 turns.
Crash Skill: Extra-high damage to a single enemy with low probability of inflicting sleep.
Ability 1: Break protected panels while in front.
Ability 2: Gain small health when breaking 40 panels in 1 turn. [With a bug count of 30]
Tip: Hamelin Kaito is a great offensive support unit to bug to 99. He works well for clearing the field and increasing units attack while having a chance to inflict sleep on enemies.

Rin Inaba
6* Max Type: Balanced Color: Yellow Health: 5686 Attack: 4000 Recovery: 2515 Cost: 45
Skill: Rin converts red and blue panels to yellow panels, while also increasing the attack of yellow units greatly for 1 turn. Her skill cooldown time is 8 turns.
Crash Skill: High damage to one enemy.
Ability 1: Break protected panels when lead.
Ability 2: Increase attack when breaking 30 panels in 1 turn. [When 30 bug count is achieved]
Tip: Rin is very easy to a bug count of 99. Her stats are very balanced but should be used as an offensive support to be able to set up the panel board. She can boost the parties' attack and counter protected panels if needed be.

Miku Murasaki
6* Max Type: Technical Color: Green Health: 5783 Attack: 3512 Recovery:3170 Cost:45
Skill: She converts one panel to a super crash panel and adds a +1 tap for green units for 3 turns.
Her skill cooldown time is 8 turns.
Crash Skill: Ultra large damage to one enemy, raise attack of green units slightly for 1 turn,
Ability 1: Break damage panels without taking damage when lead.
Ability 2: When fever bar is 50% or more, attack stat increases slightly. [Only with a bug count of 30]
Tip: The Miku Murasaki green version is a bit weaker than the Murasaki blue. Her stats are balanced though to make her an excellent support unit to bug to 99. Her collaboration quest can be difficult if you don't bring at least 1 Luka V4X unit to make it easier.

Snow Miku 2017
6* Max Type: Recovery Color: Blue Health: 4406 Attack: 3055 Recovery: 3941 Cost: 45 Skill: Snow Miku dispels heart lock, provides 3 turns of healing, and increases in recovery stat of all units. Her skill cooldown is 8 turns.
Crash Skill: Greatly restores health
Ability 1: Break protected panels when lead.
Ability 2: When destroying 18 panels in a turn, increase fever bar.
Tip: Snow Miku can be considered a great healer with an almost 4000 recovery stat. She can provide a nice counter to heart lock, while being a great defensive healer.

Miku Lucifer
6* Max Type: Offensive Color: Yellow Health: 6574 Attack: 5019 Recovery: 2316 Cost: 50 Skill: Miku Lucifer converts heart panels to yellow, while absorbing Red, blue and green panels dealing a fixed amount of damage to the enemy scaling to the amount absorbed. She has a drawback of super crash panel generation shortened to 1 turn. Her Skill cooldown is 9 turns.
Crash Skill: Extra large damage to a single target.
Ability 1: Break protected panels when lead.
Ability 2: Immunity to skill bind with a bug count of 15 that is later implemented.
Tip: Miku Lucifer is an all around great unit. She can provide a nice offensive role, provide burst damage, and later on when her 15 bug count ability is implemented she can possibly counter skill bind quests.