For a "Physics" puzzle, the physics of the game are extremely poor. Case in point--if one hits the ceiling traveling up and left, the resulting collision sends the person traveling down and to the right. This, as anyone with a slight background in physics could explain, is not how a collision with an apparently smooth surface would occur. As a CS and math major, this game just made me sad.
This game has a very confusing user interface. There are far too many options, and almost none of them are explained. The basic concept of a pseudo TD game is good, but poorly implemented. Fewer options in this game would actually have made it more entertaining and fun.
Dudes, seriously. Mel Gibson is probably the best director ever. The addition of him into this game makes it all the better. I wish he could have had a bigger role in the game as a whole, but you can't have everything.
This game needs much work still. It seems that many of the cards are much more powerful than others. This causes extreme difficulty in advancing through the game. For those just starting out, only three of these cards are available (a couple more for those that have taken the time to complete challenges), but t3h n00bz still often have much weaker cards than others. The only way for them to advance remotely quickly is to play Kongai repeatedly. However, n order for this to work, they must also win. With weak cards and 'quickplay' placing them against much stronger opponents, the chance at getter stronger cards is unlikely. Because no new cards are gained, the entire point of an online card collecting game vanishes. The game will easily frustrate new players, and after the older players earn all 46 cards, they will doubtfully stick around playing the same people all the time. I realize that this is probably only the first version, but it needs serious work.
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 "Kongai"){kind=icon}
Its only visual bug. Repaired.