I disagree. Although this isn't one of the greatest games & this format of overlapped dimension platforming is tedious at times, the cartoon graphices & simple 'kill all the bad guy' gameplay works well. This is a simple & enjoyable game. However, if you're looking for something similar but better, try Black Lamp.
The worst ST game ever maybe. An intro tune that threatens to melt your ears, and tedious gameplay problems. These include a gun that runs out of ammo, but doesn't tell you how much ammo you've got left, ropey controls and setting off the bombs to blow up the base was a pile of pants as well. Grenades the size of a man.. what? Oh and it looked like a dogs dinner as well.