-Movement needs to be at least twice as fast. And no, having an purchaseable upgrade several levels in to make basic gameplay less of a slog is not an excuse.
-Walk animation doesn't match the walk speed at all.
-It shouldn't show the "P1" above your head at the start in singleplayer.
-You don't need the prompt to enter the dungeon.
-I don't like that you have to stop to shoot.
-Gameplay in general needs to be twice as fast.
-Spikes on the ground need to stand out more. They're really small at this distance and blend in with the floor tiles.
-Enemies can walk into spikes and kill themselves.
-Every enemy can be beaten by spamming to destroy their projectiles. Needs enemies with indestructible projectiles.
-Are you supposed to have to skip buying an item to buy the more expensive ones?
-Make the Level Clear screen skippable and level transitions faster.
-Does it matter which door you take in shops? If not, you need to make that more obvious.
-The collision box for the pressure plates (or the player) is too big. Always err in the player's favor.
-Restarting gets pretty tedious with the slow pace and slow difficulty ramp-up.
-I realize it's a joke character, but the girl from that skeleton punching game isn't very fun to play as. You spend a lot of time just waiting for enemies to come to the bottom of the screen so you can hit them, and the movement feels floaty. Also, you should never have an action that requires double tapping the movement keys under any circumstances.
-Cloud shadows should be fuzzier.
-I don't get how the right click attack is meant to be useful.
-Having to forego upgrades as your only means of getting health back is really harsh.
-Needs a grace period after taking damage.
-The root walls don't stand out very well.
-The last level is bullshit.
-You can take damage during the Level Clear screen.
-Didn't try actually making anything with the editor, but I hate the pie menus. Just have a palette. Look at something like Warcraft 3 for a simple and easy-to-use editor.
Managed to beat it eventually, but Jesus, you can really feel your life ticking away as you trudge through those early levels. Props for not having any procedural generation trash.