It's a simple but fun game with lots of variety, and neat that you can play with multiple people simultaneously.By the way, I did have the problem other reviewers are complaining about too, where it wasn't letting me go past a level (in my case 60) but realized that it was just because it had skipped me ahead and stopped giving me credit for beating levels. So, that is an annoying bug, but all I had to do to fix it was restart the ipad, and go back and beat the levels it had skipped (you can tell if a level was skipped if its circle is smaller).

Like their game Wurdle, which is a simple word game that I have kept on my iPhone and iPad (unlike others that I delete within a few minutes after downloading or within a month or two) 100 is a game that is simple but deeply engaging. I have only played the first 10 levels. I stopped because I had to get to sleep so I could get to work in the morning. Otherwise, I would have stayed up and would have worked away at this game until I was blurry. The concept is simple. Enlarge the balls until you reach 100s. Do not let them touch another ball while they are red (growing). That is it! The challenge comes when there are more balls and they move around the screen, surrounded by bubbles, linked together etc. Movement is fluid. Try it!

This game is in a class of its own. Minimalistic, smooth, and intelligent. You are thrust into the midst of the game with absolutely no directions, expected to learn the rules of the game simply by participating and using your own intellect and deductive reasoning. That's how most modern games work, and if you're familiar with games on the PS3 or XBox, you'll have no problem figuring out how to work in the Hundreds universe, which changes on each progressive level. There are occasional word puzzles throughout the game that require you to reorganize the letters to solve it. I've only solved half of one (only began playing today) so far. The soundtrack is awesome, btw, and I'm so happy some smart, progressive-thinking gamers decided to make Hundreds. Thank you!

Fixed the bug so updating with a 5* rating. The game is fantastic but it wiped my progress! It's so frustrating. Some of the levels are brutal and I really don't want to do them again. I tried playing on a different device (before the update) and was sad to see that it didn't retain my progress from playing on iPhone. I still played one or two levels just to try it on a bigger screen, then today after updating I see that my iPhone version gas gone from being at level 70(!) down to level 2! AAAAARRRRGGHH! How on earth did the game not ship with the feature in the first place- and why was there no warning with the update? It's ruined my experience with this game.