thanks. Actually, the bug should be fixed now, but you have to remember that the rocket uses a vector class to move, so each opposite movement will take some time to go forward. I also added a two player mode cause some of my friends requested that. Enjoy! Also, just wondering, is the game too challenging/easy and enjoyable/unenjoyable, or just right? Sorry about the slowness of my updates; I'm currently working on another scenario atm.

Hm this is an interesting class (the smooth movement class). Just wondering, how do you stop an object from being moved around by the user when the game is paused?

Lol yeah the invincibility would give away the storyline a bit too easily.. The easy and hard idea was harder to implement then I thought at first though, one advice is that when you click on the easy/hard object, have it remove itself from world after it's done loading the field. you can sumit a scenario by first making a greenfoot gallery account, and then open up greenfoot, click Export > Publish. There, just enter in the login info for your greenfoot account.

Thank you! I have fixed those errors, slowed down the rocket, increased turn speed. I also added and easy and hard mode (as requested by my school friends), and brought back "no drift" mode xD. Tell me if any of you ever get to level 20... cause hopefully all the bugs are fixed so I can continue with the storyline. (BTW, there is a cheatcode... have fun ).

Wow, very nice, nice concept! But yeah, it does act a little funny when you let it run for a while (I would hate to live in that solar system XD, because the planets go near the sun, and then springs out of orbit after a while), but other than that, nice simulation of gravity.

Thanks, just wondering, how far do you guys get on this game? Is it too hard? Also, remember to read the on-screen instructions, because they give useful information that can help you win. This new fix should fix the random save/load bug that occurred sometimes. I think I fixed some other stuff too, please tell me if you encounter a bug though.

Thanks davmac for the advice. I implemented the idea, and it worked great, in fact, it made the game much less CPU intensive. So thanks. Also, JL235, I've tried putting the speed bar up to 3/4, but it causes the game to become extremely speedy, so I guess the speed bar is different on different computers. That's why I allowed the game to have it's speed to be changed.