A lot or a little?
The parents' guide to what's in this app.
What parents need to know
Parents need to know that Collision Effect is an arcade/puzzle game that challenges players to prevent two differently colored discs from colliding. There are two play modes: puzzle, which gives users as much time as they would like to figure out their moves, and arcade, which moves at a faster pace, but still hardly a breathtaking one. The puzzles won't be too hard for tweens, but both modes are a bit complicated for very young players. The game also uses the Crystal interactive network to share scores.
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Is it any good?
COLLISION EFFECT is downright mesmerizing. Armed with both a puzzle mode for strategic thinkers and an arcade mode for people who like their action a little faster paced, the game takes a basic mechanic -- don't let two comet-like orbs of different colors collide, but match up the ones of the same color -- and with a little polish turns it into a game that's hard to put down without taking just one ... more ... turn. Bonus points for not going with the obvious explosion sound when two incompatible orbs collide and for the colorful "tails" the orbs leave behind them as they move. They're particularly helpful when you're trying to figure out what you did wrong -- and they add to the difficulty in later levels as you'll need to brush them away with your finger to get a better view of what's happening on screen. This is a rare game that can both calm and excite you -- sometimes simultaneously.