Anime Last Stand features a wide variety of powerful exotic units, and one of them is Flash. As usual, you'll need to farm certain materials to evolve Flash, so here's everything you need to know about upgrading this exotic unit in Anime Last Stand.
The INSANE start from Noob to Pro in Anime Last Stand (Roblox)
The only way to evolve Flash is by collecting the following materials in Anime Last Stand:
Once you have obtained all of the above resources, open the Units section on the left side of the screen and find Flash. Finally, press the evolution button to unleash the true power of Flash, just like the Drip Zami unit.
Related: All Anime Last Stand Status Effects List (ALS)