Lots of nice touches I would expect from a more experienced QB64 programmer. I could see this right at home on the NES or my 386 back in the day. Options menu is a nice touch and I can see a lot of nice features in there such as keyboard re-mapping. I didn't play with gamepad but nonetheless found it cool to see that QB64 games can support that.
Tiles, sprites are graphics are definitely leaps and bounds better than traditional QB64 games (Gorillas, Nibbles, etc).
Background music was pleasant.
Default control mapping was good.
I also liked the forest and mountain background as it gave a better idea of the setting for the game.
Nice interpretation of the anti-gravity theme for the game jam!
Suggestions for improvement:
I'll preface this by saying that puzzle games are not my favorite genre, so I am definitely not your target audience. I didn't find the game to be very intuitive and wished there was more explanation for how/when exactly each character was supposed to use their power. From a general game design perspective, 3 characters with unique abilities is a bit much if you're trying to ease the player into the experience. I would have preferred just one character with one or two abilities than trying to juggle three of them. A tutorial of some sort would have greatly helped.
Movement. It took me about five minutes to figure out how to move properly in the game. I was expecting that holding the arrow key would keep the player moving in that direction instead of only moving one "space". I eventually figured that out, but still wasn't able to figure out any of the puzzles.
As I mentioned earlier, the menus and UI are very polished with a lot of nice settings and features . . . but that matters little if the game itself isn't intuitive. So I would suggest spending more time on the game than on the menus.
So far this is the best-looking QB64 game in this game jam and one of the better looking QB64 games in general. I have no doubt this concept could be polished further for a more enjoyable experience!