So over the past week the back of my Nintendo 3ds began to bulge. I merely brushed it off as the back cover warping likely due to heat and it still worked. So today I decide to play some games and my Nintendo 3ds doesn't turn out. I charge it maybe thinking it had died, but nope it didn't turn on. Naturally, I freak out and open the back of the 3ds to find out the battery is actually swollen.
Long story short I had to order another one for about $20.

I guess at the very least I don't have to replace my 3ds.
Really great timing, especially since the day before I had redeemed Mario Golf World Tour, Wario Land II, and Chibi Robo Photo Finder. Guess all the free games I got ended up costing me after all.