Dungeoneer And The 3 Gifts

the game's design and level design are great! i love the final levels and the practice it took to play through them.
some generalized feedback:

haptic feedback for checkpoints would be great, visual and audio cues mostly

hurtbox of the player is too wide

hitbox of the spikes bleeds out through solid wall (which i can see why the edge spikes got taken out in many cases)

the game is very left hand reliant, not sure if there's work to add player customizable keybinds (shouldn't be difficult in Unity)

when cannonballs collide with the wall and do a puff smoke animation, player can still die from a lingering hitbox from the cannonball

wall slide jumps are not as intuitive, either tell the player to mash jump key or hold either slide direction as alternating left and right and trying to time jumps has strict timing (maybe sticking before sliding for a little longer can help the player timing without intruding on your level design)

on all moving platform screens where player dies from spike obstacles, delay moving the camera back for a second to see death animation, and perhaps move camera less fast to prevent motion sickness

in metroidvania styles the game time pauses as the camera slowly pans to the next room, this is to prevent motion sickness in case a player spams left/right or height changes when changing rooms. this is mostly evident early on when there are alternating wood platforms to jump through, it makes it easy for a player to miss a jump and get spammed by camera movements changing from both rooms within a half second

not sure if you're implementing any sort of UI e.g. audio controls, pause menu, and all that but tutorial controls and keybinds can go there

yellow buttons have no visual cue that they've been pressed, perhaps just removing the red bit can help with that (e.g. in one room players have mentioned they feel like repressing it can retoggle the walls rather than just waiting for it or dying to reset it)

some pathfinding hints can help at certain states of the game (e.g. abilities acquired?) as most of my friends and I got stuck and had to reexplore the entire map a couple times

cannon and cannonball color contrast compared to the background is not distinct enough, could use a white outline of sorts which requires little to no picture editing experience

i absolutely loved the level design and how we kept going back to the starting area with newer abilities and explored areas we couldn't reach before, that gave me a huge sense of satisfaction and closure

the boss levels including the mario wonder style rising spikes gave me shellshock but were very satisfying to play through, I can tell you've spent a long time fine tuning the obstacle distances and timings for these levels

also thought it was funny but a friend and i both read S - CROUCH as SCRUNCH somehow