Very nice for a first game, there’s a lot of nice ideas that are interesting. I like the core gameplay, though I sometimes get stuck with the part of the board I’m on having difficult patterns. The bugs make it a bit hard to properly give feedback to the game, and I think they should be the primary focus.
Settings button on main menu doesn’t work. Also not entirely obvious that you have to click the UFO to start the game. The “Less XP” curse feels unfun, since it just prolongs the game without making it any more difficult.
If you take the “destroy tiles you step on” upgrade, you will just start jumping around for all eternity, until the player character goes invisible and becomes unable to gain any levels or take any damage.
At one point the enemies just stopped increasing their move timer and just kept standing still.
I often get the choice to take an upgrade I already have.
Increasing max HP gives you another filled heart at the end, but doesn’t actually increase your HP? I had 1 heart left, chose increase max HP, then died to the next hit.