Pixel graphics had a limitation of 320x240 resolution with 256 colors and no animation. Otherwise there were no other limitations.

Partikle by Ronsu Partikle Ronsu
One more minute by Kisu One more minute Kisu
un nouveau soleil by Surround Tekotuotanto un nouveau soleil Surround Tekotuotanto
S P I C Y by jemu S P I C Y jemu