I invested in POTASH (of Saskatchewan or something), they make fertilizer for some bullshit potato farmers. I invested when they were low, made TONS and won my game, fucked bitches, peed in said bitches butts, and won 100$ of skrilla.
but don't invest in Apple, Google, or any other stocks that are already super high. Pick penny stocks that have high potential. BB would probably be a good bet right now since it's somewhere around $10 and will no doubt spike sharply upwards once their first sales figures are announced.