Spoiler Alert. If you haven't played chapter 2, or advanced far enough in chapter 3, DO NOT READ.
You should definitely be able to equip the soul gems of the GDM in the games, for bonuses for the stats they are about. And, while you're at it, you should also be able to use the crystals for effects and attacks.
One tactic for all the "Points in one swing" achievements is to get a grinder and two (Any two) more glooples together in one swing. If done correctly, the grinder already counts for 100 points, so the 3x multiplier will buffer it to the point in which you have 300+ points, and all the swing achievements. Hope it helps!
Kongregate. greg. Whoever the heck adds badges to games. If the original is worthy of badges, and this one is at least 2x as good as the original, does it not deserve badges? I, Bobstevenson119 think so. Who's with me?