For sheer challenge, there's not much on the Megadrive to match this. Converted from the coin-op of the same name, your mission is to guide your super-hard soldier through enemy lines trouncing everything and everyone you encounter.
The gameplay is superb, with scrolling arcade action that's almost identical to the original monster Capcom coin-op! The icing on the cake is a second game mode with different levels and a different system of power-ups which force you to use a completely different strategy.
One of the best action games on the Megadrive, and a very welcome addition to the budget range.