Roguebot Rumble pretty fun but man some of those floors are unfair
Edit: there was a floor that was three block wide and i think 12 blocks tall that basically funneled enemy on the button that transformed them. so i think the idea was air attacks only but there's six spawners that activated one after the other so there was no way that it was possible unless you did uppercuts then slam attacks constantly. I unlocked quite a few upgrades by then luckily but that level was really unfun and took a ton of retrys
