I really like this! Each of the characters feel very different and have different uses so it's very easy to tell which ones to use, the disadvantages and advantages were also pretty nice, like only being able to use the minigun on the ground or not being able to jump with the turtle while also having higher horizontal movement. The animations and characters were cute and I wasn't expecting the final boss at all haha. I have a a few things to improve the game though
-The background was just a solid colour so it was a little boring, maybe a few clouds or a background sprite can help with this problem
-It gets a little tedious to have to replay the entire game because you died, maybe a few checkpoints could help?
Overall, very fun game. The movement was solid and the game was fun to play. I liked the balancing for characters and they were pretty cute