Hi Sofaspartan,

the last level 5-1 was most fun.

The gameplay of the levels really give some super mario vibes.

Inside the water level having "to collect all keys"... after reaching the end felt a bit annoying... think it would be good to have clue right from the start... that some keys are needed to progress... like having to go back and search for all six and loose them all after death, fealt a bit to cumbersome.

Inside the air level: dying from one hit felt also relative punishing.

For me there is something a little bit off about the way the enemies moves (maybe the move to fast or something)... but in mario everything about hitting and landing on enemies feels somehow smoother.

What i definetely enjoy most in "normal mario" levels ... are secrets "which are a bit hidden" ... something which you might overlook in first gameplay but there is somehow something unexpected leading to a secret room (maybe with a marker on the map telling me that here is "something extra to find".

The gameplay overall feels quite solid

Me personal I also enjoy some kind of trampolins and something i noticed maybe the apples look something "i want to pick from the trees" and I didn't figure out "how I can destroy the walls (which where for example inside the first level and get the points behind them).

For me there is something off with the ai generated music... can't put my finger on it, but I needed sometime to get used to it.

Have fun :)

I just played through it and thought it's pretty good and a solid foundation to build upon.

I didn't mind the music, it worked well with the graphic style. I thought the music was a bit simple, but I didn't notice that it was AI generated when I was playing, though I haven't really listened to many AI generated chip tunes... maybe it's more noticeable to other people?
The graphics were cute and vibrant, easy to distinguish what is important and what is a not, and I didn't notice any gameplay related glitches while playing.

Some constructive critique that I can offer (hopefully it comes across as constructive) are:

The movement feels quite stiff compared to how the music and graphics suggest they should feel... Maybe some sort of easing into the running velocity would help? I noticed that tapping a direction to slightly adjust your position felt very stiff and made it hard to make small adjustments.
It looks a little like you're handling your player velocity for walking a bit like:
if (input_right) player.velocity.x = running_speed*delta_time;
Is this correct? If so; it lacks "damping", which can lead to a very stiff ON/OFF feeling to movement. If you look up something like "2D platformer velocity damping delta time tutorial" (without quotes), you'll probably find a lot of differing ways of implementing it. I'd love to be more helpful, but I'd have to see how your player input relates to velocity if I was going to make any really helpful suggestions.

It seems odd that when you're in water; the controls change. I'm guessing it's the kind of thing that I'd eventually adjust to after playing a few water levels, but it felt odd that the jump button becomes disabled once you're in water and you now navigate like a top down game. I think I was expecting something more like a Mario game, where you jump to swim and avoid sinking. Probably not a big thing, but I thought I'd mention it.

The last thing I observed that I thought was a bit jarring was the jellyfish. I think they're the only fleshy entity that can't be harmed, but can harm you. I think it would make more sense if they were little spiked orbs, like Navel mines, but then again; since there are bombs in the game, it would probably be confusing if they didn't explode. Once again; not a big thing, I just found it a little jarring.

Good stuff. I'm interested to see the final product. Best of luck :)

I manage to play your game and it reminds me a little of Super Mario Bros. 2 meets Kirby. I have a few suggestions to make the game different from past platform to make it stand out.  Create a scenario of collecting 50 fruit or vegetable to unlock a key to the next stage with a time limit of 2 to 3 minutes to create the stakes. As for the fruit or vegetable create a different fruit for each stage like an apple, orange , potato, etc.. Also have the player the ability to land on the enemy's head as platform without killing it if the enemy does not have spike or helmet on its head, and double tap the space bar to stomp and defeat the enemy.

I hope these suggestions would help polish you game to which its looks promising.