It's a shame, because other than that, the Mario vs Donkey Kong: Mini-land Mayhem is a well thought ought puzzle game, even if it is rather demanding of your reactions. When you've just built a diagonal incline for your Mario to climb, and it almost reaches the top, only to catch the head of a Mario on the floor below with the very tip of its boot, which causes him to turn around, and climb all the way back down the ramp, it can quickly begin to grate. As well as bouncing off walls and girders that you've built, the mindless Marios will bounce off each other - which can quickly get rather annoying. The problem is, when the Marios get bunched up, they start to walk into each other. The best strategy is usually to get them all bunched up in a tight group, so you can minimise the number of girders you have to have down at any one time, freeing them up to be placed anywhere else, and saving you a lot of hassle trying to keep your eye on more than one group of Marios at a time. It can get quite awkward at times, especially when you have a number of Marios that all start from different parts of the screen. What that means is that, far from simply being able to draw a path for your Marios to follow to the exit, you'll have to balance where and when you place your girders, practically building a bridge in front of your Marios at the same speed as you take it away from behind them. Differing lengths of girders take different points from your girder total, with diagonals usually being the most costly, as they're the longest form of girders. Of course, as is always the way with these things, there's a catch - on each level, you only have a limited amount of girders to work with. Each level also contains a number of coins, a Mario symbol, and a card, usually placed in slightly off the beaten track locations - collect all of these, and you'll unlock all variety of bonus levels and minigames for your effort. Later levels add in different components for you to place into the level, from ladders, to travelators, and springs. Touching a screw fixture on the screen, and dragging away from it will drag out the shape of a girder, and all you have to do is select where you want it to go from, and to - whether it's a vertical, horizontal, or diagonal beam is entirely up to you. You do this, initially, by placing steel girders across gaps in the levels. In that way, it's up to you to keep each of the Mini Marios safe as they mindlessly trudge towards the exit. The problem is, should they ever come across a cliff, bad guy, or pit of spikes, the minis will just walk straight into it, and meet a mechanical end. Upon starting the level, and touching each of the Mini Marios to get them going, the mindless bots will simply walk in a straight line through the level, only turning around should they hit something. Mario vs Donkey Kong: Mini-land Mayhem is actually a puzzle game, similar in form to Lemmings. You can stretch girders from one giant red screw to another.