Great app, lucky to have picked it up from Starbucks. Not a big fan of games that require quick reaction times so really liked this game. Some thought required to figure out angles and the sequences but so far all of the levels are doable-the more challenging levels usually need a couple of attempts to get it right. Graphics are good and the "physics" realistic. Sound effects and music add to game play. Noticed that the music for the last level is the same as Monster Homework app - thought both games might have been made by the same company but that doesnt appear to be the case. Minor visual glitches when the robots sometimes walk over the edges of the blocks. They cant fall off unless theyre standing to close when a bomb explodes and the blast knocks them off. Would definitely recommend this app. Bought it for my 6 year old but he prefers to watch me play it. Nice that I enjoy it! Im sure he will grow into it.