Photomosh - Turn anything into a vaporwave
Aseprite - Aseprite is an art program dedicated to the creation of pixel art.
3D Glitch Photo Effects - 3D Glitch Photo Effects – Camera VHS Camcorder is one of best most popular glitch photo and photo editor that turns your photo into special vintage 3D VHS effects, glitch filters and lots of other similar things.
Pixilart - A drawing app for delightfully retro pixel art
HearSeeParty - Combine Gifs with with music using tags
Pixel Art Studio - A purpose-built drawing tool for pixel artists