Hi there, this is a very nice game you have there, would love to see this in a full expanded version!
I am a YouTuber and a Skilled Game Tester, focusing on indie games mostly. The purpose behind doing this is to help and support developers with their games like you in order to have these games out there in the best shape possible, I hope this can help a little bit with that. Most feedback can be taken from the video proivded already, but here is some more:
♦ Game Idea: Very interesting idea for a game! I have seen Spongebob Battle of Bikini Battle game, which is great, so it is always nice to have a racing game based on that.
♦ Gameplay: I had fun playing around and trying all the different carts availlable so far, would be even better to see each car and each character has their own special abilities and features (I can try to help with some more suggestions if you would like; I have some ideas here). However, there is the bumping into the walls and fecnces, looks a bit weird as the hit box first of all there is large and there is no damage to the car nor a more nicer looking collision! The game also allows you to walk around freely, is that intended?
♦ Story: You might want to add campaign into the game for your future updates and add a little bit of story there where you have to go through certain tracks with specific characters! (Any idea or feedback am writing here means I do have some more additionals; I just want to keep this short somehow; you can always contact me in case you need help)
♦ Artwork: The cars need to match the style and features of each character, I see you have put a nice work into the design of the existing characters so far! Nice racing tracks too.
♦ Audio: I like the fact that even the voice or background music can change when you are in the tunnels, give the game more vibes! love that.
♦ Bugs & Contrsuctive Criticism: Adding to what I have mentioned above is the change of the boosters! For now, If I take a boost or nitro even if the colors are different (yellow and red/orange) the boost lasts the same it seems! There is no phyisical change to that or even a noticable impcat on the racing car.
♦ Things to Double Down on: Of course adding more new tracks and characters with their cars is something to focus on! It is also recommneded to add new and different powerups inspired mostly from the cartoon. Well done and keep it up!
NOTE: In case you need more feedback feel free to contact me, espacially if you have more updates for the game in the future. I would love to help. I also invite you to join my YouTube channel for more content like this, I try to help as many indie developers and small game studios out there.