After playing Flaming Jump's, here are my thoughts on the 2D physics and visuals (I’m focusing on the 2D part since the 3D section still feels more like a prototype to me).
The character feels a bit too floaty, adding slightly stronger gravity or a fall speed multiplier could help. I’d also suggest implementing coyote time (a short grace period that lets the player jump a few frames after leaving a platform) to make the controls feel more responsive.
It could also be great to add variable jump height: small jumps when tapping the button and higher jumps when holding it. Right now, even to grab a low pineapple, I have to do a full jump. Increasing the pineapples colliders slightly might help too, sometimes I touch them but they don’t get collected.
Visually, everything is clean and readable, but maybe a more unified color palette could give it more personality. The frog design is really nice though!
Of course, this is just my personal feedback.
GG on your game 🙂