1.5tb Sandisk micro sd card was dead on arrival, so that's great. Have a new one coming Tuesday, hopefully that one isn't. Anyway...
Played just shy of three hours of Digital Devil Saga 1 today without charging and the battery is down to just 49%, which is amazing. Game ran well, too - I believe I'm only at 1x resolution, but the screen is small enough you can't really tell. I also played like ten minutes of PS2 San Andreas, and I had to disable L3, because no matter what I did with it enabled, CJ would randomly crouch while walking or honk the horn while driving (I assure you I was not clicking the stick down). It was weird. Once I disabled L3 though, it was smooth sailing.
I still need to figure out how to tweak N64 a bit - I booted up Pilotwings 64 and there was the weird giant shadow on the bottom 1/3 of the screen under my hang-glider, no matter which emulator I used or whether I had Vulkan or whatever it's called. Mario Tennis 64 runs, and seems fine during normal gameplay, but the menus only show whatever icon is currently selected like in the character select screen, or whatever. I'm sure it's ignorance on my part, but if anyone has any tips to make those look proper, I'd appreciate it.
Dolphin seems good, though Rogue Squadron is a little choppy even at 1x resolution, though maybe playing for a bit so the shaders are loaded would alleviate that somewhat. Weirdly, the Pikmin title screen has some graphical glitching on it, but the game otherwise seems to play fine (not that I played very far in it, who knows, maybe there are other weird issues).
Wario Land: Shake It!! ran fine, though I need to figure out if I can emulate Wiimote tilting to aim throwing enemies, because I was stumped on that. The cutscenes ran a bit slow, but who cares, they're pretty crap anyway. Mega Man 9 and Castlevania Adventure Rebirth ran great as well, though both were pretty heavily windowed. I wonder if there's a way to tell Dolphin that the Wii internal resolution should be set to 4:3, rather than tweaking that setting in Dolphin - whatever option I chose, there was a pretty big black bezel, just in a different shape.
EDIT: I should mention all of this has been with max brightness, too. The colors pop on this OLED. I played a half hour of Skies of Arcadia Legends in Dolphin and only lost 5% battery. Pretty good...