I usually don't go for arcade type games, but browsing through the Tome, I came across one that looked too interesting to ignore. Fishie Fishie is an arcade game with a novel concept: you control it using only one button. Initially I was thinking to myself, "How fun can it actually be if you're only hitting one button?" It turns out the answer is "pretty damn fun."
You hold the space bar to turn left, and let go of it to turn right. That's it. Tapping the key at the right speed results in mostly-straight travel. The goal is to eat up smaller schools of fish while avoiding larger ones - if you don't do it fast enough you starve. The game is intensely simple, but it turns out to be much more than the sum of its parts.
The presentation definitely helps: the wonderfully drawn sprites, quirky music, and goofy sound effects all come together to give Fishie Fishie a lighthearted atmosphere and a definite charm. It's one of those games where kids would probably love it, but there's plenty of room for adults to enjoy it as well.
The only flaw isn't really a flaw at all, it just comes from being the type of game it is: games like this, for me at least, tend to get old fast. It's pure, undiluted fun, and a lot like pure sugar, I can't take too much of it at once. That goes for the entire genre for me though, so it's no fault against the game.
Being around a 3 meg download, it's definitely worth checking out for a quick burst of fun, whether you're a fan of the genre (arcade games, not fish-gobbling games) or not.