What SMIISH said...
With mountain bikes under about $2k, you pretty much get what you pay for, and bikes in this price range are more or less the sum of their parts. And the quality of parts makes a big difference to the quality of your mountain biking experience.
That bike is a waste of $198. I'm not sure I'd even be prepared to ride it on the footpath to the shops to get the milk and paper, let alone on dirt or the "small stunts" you mention in your OP. I'd probably walk.
Specifically, the rear "shock" isn't a shock, it's a couple of sliding rods with a stiff spring wrapped around it, the cranks won't stand more than a couple of hard landings or a decent stack without bending, and the front tyre won't track in a corner even at moderate speed, because the fork has only friction damping capability. I seriously would not want to leave the ground on that bike, and I'm not much chop at jumping.
Given your budget, if you want to ride XC, get one of the hardtails that SMIISH recommended, Merida is a good brand. If you are serious about attempting some "stunts", get yourself a second hand hard tail jump bike like a Giant STP or similar, preferably NOT one owned by a teenaged male who's lack of fear and therefore abuse of the bike is matched only by his lack of money to maintain it properly.