This is really addictive. It's extremely small scale tactics, but the small numbers and color combination mechanic make it really satisfying to solve room after room. My best score was getting to room 16, at that point with three enemies it's pretty tough to avoid same-color attacks. Some of the rooms appear to be blocked when you and the enemy don't deal any damage, but it seems like the game recognizes when you're in lockstep and moves the enemy to the other open space to let you through the door. Really well done, this is the kind of game I would love to have on my phone.