The fastest way of getting all 3 badges (without cheating):
Do normal mode. It's possible to make it to the last stages without dying. Only spend money on upgrading weapons on DPS. or ship with more slots/speed. Max out at Northrop ship. Later levels give more coins. So you'll be able to make it to last stages. And gather lots of coin. Do not get stars until you beat normal. Game is easy.
POST TIPS: Survival mode score is 100pts per level completed + 100pts for each tech advance completed. Hard badge requires being ON level 30 + all 9 advances.
POST TIPS: YELLOW PLANET – Stand on the moons until they sink into the planet. GREEN PLANET – Go to the outer rim and you’ll see some tiny moons, attach to them and swing around till explosion. PINK PLANET – Go around the planet until you see a mouth, go inside the hole, then there’ll be some floating crystals, hang on them one by one without touching the ground. They’ll make a pan sound, once you get them all puzzle’s finished. BLUE PLANET – Water planet, dive in and eat all the little fish with your blobs mouth, puzzle solved when all fish eaten. GRAY PLANET – Once you get to it, hit the center. It’ll explode, but must finish all other planets before this one. Keep this alive!
POST TIPS: The band aids are at: Chapter 1 levels: 3,4,7,9,12,14. Chapter 2 levels: 3,4,6,9,11,14. Chapter 3 levels: 1,2,7,9,12,15. Expert chapter levels: 1,4,5,6,7,10. <------- Keep this alive!
POST TIPS: The band aids are at: Chapter 1 levels: 3,4,7,9,12,14. Chapter 2 levels: 3,4,6,9,11,14. Chapter 3 levels: 1,2,7,9,12,15. Expert chapter levels: 1,4,5,6,7,10. <------- Keep this alive!
POST TIPS: This game needs the guide for completion. Click "hint?" on the bottom right and you'll earn an achievement. Achievements uncompleted will be a light blue. <--- Keep alive if this helps
POST TIPS -- End A: keep the sharks away from child. End B: Let the sharks eat the child. End C: Kill one human and die for the mines. End D: Kill one human and die for the Torpedo. End E: Kill one human and survive. Caution, Spoiler Above!!!!! Copy and past to help others!!!!!
POST TIPS: To beat game in 12 days or less -- upgrade water drop, upgrade rusty nail, and research artillery. then spend the rest of your money on repairing the ship.
Re-post if this helps.