A runner game with gratingly repetitive menu music (though the in-game track is thumpingly heavy), featuring the headless horde of explosive grunts.
Every few upgrades youll get upgrades, such as extra lives, benefits for your rage meter (if you attack too much at a time, youll prematurely explode!), and more pick-ups, which youll need as the levels ramp up, both in obstacles present and in secondary objectives (PROTIP: Jump while attacking to hit things a bit easier, since many times you can sail right past -- usually under -- what you aim for.).
Funny, and, loathe though I am to buzzwords, it really is simple to learn, hard to master, since getting the hang of where and when to jump and, more crucially, attack is key to objectives and high scores.
Worth a dollar, at least. Try it out at the "Join Mental" website, if you want a demo.
TJF588 about Serious Sam: Kamikaze Attack!