im at school rn, bored as hell, i can playtest your game, i have 35 minutes
(IMPORTANT, i might be misinterpreting the theme of his game as roguelike)
Main game loop comments:
0. i think you could go further in on the invincible theme, but it might be too late for that now.
1. faster coin gain in the start, to be able to buy at least 1 upgrade every 2-4 rounds, even at 3x speed it seems slow.
2. More adrenaline; if you look at other roguelike-esc games, (clover pit for example) you get a huge adrenaline rush when you get a jackpot.
2.5 More color pop, and a more complicated crit system, so makes it sort of random, like one time you do 2 damage, and another time (the same throw potentially) you do like 40, and if you do a high enough damage, you get explosion particles, and a large boom potentially (you can customize it how you will) i would use ultrakill or unorthodox accounting (on roblox) or clover pit for inspo.
3. it would be nice to see what items you have, more than just an icon (name and description)
nitpicks (dont rly need to fix) 1. when Zippo waves, his hand is rotated from the middle of his arm. 2. in non-fullscreen, the buttons hitboxes are offset down a little
i would do more but i gtg