Pikifen (formerly know as the Pikmin fangame engine)

Heya. Off the top of my head, I can't really imagine what the problem might be. I think textures have some problem rendering when their dimensions aren't powers of 2. So make sure your texture is like 64x64, or 128x128, or 256x256, etc. If it still doesn't work, hop on over to the Discord server and I can take a closer look.

Don't worry about it! Though like I said, it's more convenient if you use the Discord server.

Anyway, you can do what the Wollywog does and rely on negative gravity to go up, then stop vertical momentum after a certain time. That said, I'm currently working on Winged Pikmin, and I'm nearly finished, so you don't need to worry. I also want to add some way to allow scripted objects to move freely vertically without relying on gravity.

Hi, the reason I haven't been asking anymore questions is because I have been trying to access the Discord server. I've been unsuccessful.
Espyo, just wanted to let you know I'm excited for the next update! You're doing amazing developing this game!
Also, other fans of your engine, (including myself) are all right behind you! We love you man!

Pikifen 0.21 is out! This update adds Rock Pikmin! Now, some time ago, I had said Winged Pikmin would be too complex, and their flight would be too hard to represent in a top-down format. But over time I realized that they work like regular Pikmin, but can just be given free vertical movement when going places. Also, they can just be given a penchant for staying some units above floor level, when idling or following a leader. As for representation, well, they're Winged Pikmin -- they're always flying! There's no real need to show if they're on the floor, slightly floating, or very high up, since the vast majority of the time they'll be flying at the same distance above the floor, and all other cases are pretty intuitive. So after some weeks and a lot of work, I'm happy to say I was wrong, and that Winged Pikmin have now been added too! You can't have these Pikmin without something for them to do, so I've added Skutterchucks, Puffy Blowhogs, crystals, flukeweeds, and more. And you can't have Pikmin 3 Pikmin without Pikmin 3 leaders, so I've also added Alph, Brittany, Charlie, and the S.S. Drake! And you can't have all main Pikmin types without finishing the list, so I've added Bulbmin! And you can't have Bulbmin without their parent, so I've added adult Bulbmin too! Finally, this update also brings some major improvements to object behaviors and the cursor, and some new controls. As per usual, check out the full changelog in the included manual. Get version 0.21 here! github.com/Espyo/Pikifen/releases/tag/0.21.0

Version 0.21.1 is out!
This fixes two glitches involving Pikmin attacking enemies, and also fixes the manual when viewed under Chrome. These glitches were a bit annoying, so please make sure to download this version.
github.com/Espyo/Pikifen/releases/tag/0.21.1

Pikifen 0.22 is out!
This version is all about polish -- lots of small graphical tweaks across the board. In addition, there is now also a help page in the pause menu, which allows players to read up on fundamental gameplay topics, and even learn some tips! As usual, the full changelog can be found in the included manual.
Download version 0.22 here!