I like that it moves differently than most machines, so it's a novel experience to drive. The self-destruction is also pretty epic. Since there's so much shrapnel, you can take out pretty much stuff in the sandbox, even if you just detonate right from the starting point. 😈

BTW, it does work somewhat without invincibility; you just have to not pitch the airfoils too much and avoid running into anything with them. Not using invincibility makes the self-destruction more fun by giving you lots of shrapnel. 😀