Game review for Colliso Puzzles

In this puzzle game, players must slide tiles into the correct positions. When like tiles collide, they will be removed from the board. When different tiles collide, their colors will be swapped. The player must remove all the tiles in the level to solve the puzzle.When a level is solved within an indicated number of moves, a bonus + level will be unlocked.
In the bonus level, the player must clear the level four times consecutively - each time, the level may be flipped horizontally, vertically, or both ways.The game includes 10 carefully designed levels. If counting the flipped levels, there are 40