F.I.S.H. is an intense, fast paced rhythm game that relies on cues and quick reactions.

Your job working for the Department of F.I.S.H. is to enforce road safety onto any fish swimming towards an area that they're not supposed to be in. You accomplish this if you can successfully input a STOP sign when the fish are close enough on screen; if you're too early or too late, said fish will swim by as if the STOP sign wasn't even there. How rude!

As your training progresses, you'll learn about the 5 different types of fish that are known to disregard road safety in the city of [CLASSIFIED]. They are: Tuna, Salmon, Barracuda, Sailfish, and Swordfish. Each fish has a unique timing that changes dependent on the speed of the music.

At the end of each level, you'll be judged based on a score out of 30. Score a 15/30 or higher, and you can move on to the next level (unless it's the last one). Score anything lower, and you'll have to retry the level until you get a 15 or higher.

As of the current version, F.I.S.H. features a singleplayer campaign of 15 levels. There may be extra levels added in future updates.