2905. Keeping the shark gun close to the right of the screen keeps your path clear. Spamming sharks against the stacks of metal crates clears them out about as fast as the spike wheels do. Snag a few ammo balloons along the way and you should make it in a few tries!
3:15! You can save time by not bothering to hit the last two checkpoints, just before the feather. They're on platforms that take extra time/effort to get to. If you die in that stretch, with so much slow swimming to do, you're probably screwed on getting the hard badge anyway; it won't matter where you respawn. Thanks for a good game, Krankdud!
Save some time in level 60 with Lightning and Shortshield; sit on top of him right as the level opens and use them one after the other. I wish there were as quick a strategy for level 58.
Congratulations! You just won the Effigy of the Forgotten Badge and 30 points! A tip for beating hard mode: once you get to the worm boss in level four, destroy all the other enemies on-screen and take out most of the worm's turrets. Then stop shooting and just let him fly around you. He'll do almost no damage, and you can let your repair bots get your health up to full so you start the next level fresh.
 "Nuclear Outrun"){kind=icon}
 "Katwalk"){kind=icon}
 "Heavy Weapons"){kind=icon}
 "Orbital Decay"){kind=icon}