This is one of those game that you just keep playing
What I like best about this game is build mode. You start of with a chassis, and you add stuff like motors and batteries to make you own bot. The great thing is that sky's the limit here. You are free to go for any design you want. go for 3, 4 or even 10 wheels, make a bot with a saw, spikes, a shovel, or even all three of em. You can truely build thousands of totally different designs.
The actual battle is pretty simple and basic, you fight another bot untill one of you breaks down. The beauty is that a new bot design gives you a totally new battle approach, giving you a different game over and over again. And that is just what makes this game what it is, a hack and smash game that simply never gets boring
I have stopped playing it some time ago, but I ocasionally install it again, just to do a few quick matches. Make an extreme heavyweight bot with an insane weapon arsenal, and hack away at your enemies.
This is also the only (small) flaw of this game: in singleplay mode, if you build a heavyweight bot with a big amount of weapons, your virtually unbeatable