Hey! Welcome to this thread. I'm Eelstork the author of TS2. At the moment here's a few things I'm planning to be working on:

• Apply rotation to the turtle shell
• Control the turtle's head and beak
• Add turtle soccer challenge (2p VS same comp)
• Add turtle sumo challenge (2p VS same comp)
• Add turtle tank escape challenge (1p story mode)

Sounds awesome ha! Don't hesitate to post your suggestions; note that you can support my work on Patreon, or check out my other games - making this stuff actually takes a huge amount of time. Thank you!