Was 40% through lvl17, as a necromancer, and came back to having over 7 billion gold, and being sent to quests on "Planet XZ" or some such, where the enemies had over 5mil hp, and were 1hitting me (I only had 1k hp). Firefox (3.6.4) would freeze every time I died, and every time I picked up a new quest, but I let this go for a while, hoping it would resolve itself, but I kept getting sent to the planet and being 1hit, reloaded the page, and my character is completely gone... :'(
I just need the "unknown" and "ultimate" achievements, unless one of them is buying all items from the legendary shop, or buying all the equipment for all the ships, I'm out of options (level 24, with all items bought for 1 ship, all gold medals in time attacks)
Multitasking isn't the issue, using my left hand to control the right of the screen and my right to control the left just confuses me... my square's going back and forth while my ball rolls off the stick :p
for infinite and beyond.... this worked for me (might take some luck, too)
...code's too long to post... basically make a circle of wormholes all facing inwards (with half of them in the middle), put a few planets on one side, shoot, and wait
 "The Idle RPG"){kind=icon}
 "Level Up!"){kind=icon}
 "Little Wheel"){kind=icon}
 "When Penguins Attack -TD"){kind=icon}
 "The Last Stand 2"){kind=icon}
 "Toss the Turtle"){kind=icon}
 "The Unfair Platformer"){kind=icon}
 "Enigmata"){kind=icon}
 "Stick Arena: Ballistick"){kind=icon}
 "Multitask"){kind=icon}
 "Gravitee 2"){kind=icon}
 "SeppuKuties"){kind=icon}
 "Pixelvader"){kind=icon}
 "Cargo Bridge"){kind=icon}