FNF vs Sonic.EXE but Bad is a mod of the game Friday Night Funkin'. The game features Sonic.EXE as the main antagonist. This mod is made in a "but bad" style, meaning it intentionally makes the character look bad and flawed to create a humorous and fun experience.
In the game, you'll participate in rhythm battles with Sonic.EXE. The graphics are constantly glitchy, the colors are inaccurate, and the effects are shaky. The sound is sometimes out of sync or sounds very strange. Although it looks a bit messy, it's entertaining and quite fun to play.
The gameplay is the same as the original Friday Night Funkin'. You use the arrow keys to tap along to the music. Tap correctly to win, tap incorrectly many times to lose. Some tracks, like Too Slow, Endless, and Execute, have been modified to be more difficult and have more unexpected effects.
The game has a style that's both horror and comedy, not overly scary but more focused on entertainment. Bugs and glitches are intentionally added to create a "troll" feel. You can play FNF vs Sonic.EXE but Bad directly online at FNFMods.io. Just open the website and play immediately, no downloads or installations required.