Easier than a first sight. Earn achievement to take 50 plasma (rest you need take from deep). Just dont use plasma to buy equipment until jump to red planet (in red planet you can grab 50-100 plasma at one try).Upgrade your hull first to get bonus 1000 plasma from achievement. To get 500m in 30s use your WASP hull!!. If you have problem with material just play green planet (~20k per trip), if need plasma try red planet. I hope its help. Do this in ~1day
Tips for hard mode: play on easy and medium first to unlock Trojan, then select 75 card with 5 trojan, 5 ambush and add crystal/weapon and brick. Try to earn components for trojan and kill them as fast as you can, until he upgrade his castle. If you got wrong card - restart. The hardest game in final battle - 35hp so you should use trojan and ambush or double attack card. Good luck!
For all who have problem:
bring spider eyes for skulls (you catch them by your cursor) and subzero for chilling ray. Holding space and your monster moonwalk out of the screen. You can use skills, catch skull and no damage! But remember - when you use skill monster come back to the screnn so remember !!! clic skill and back to holding space as soon as you can !!! you are out of the screen constantly. If i hope +
Easy way to hard badge: buy only a marksman squad (dont buy grenade and other guy). Buy a car and drive until you crash - then pause a game and restart. You earn cash and XP. In endless mode try to crash your car as fast as you can and bring a marksman only. With 15 sniper you are unbeatable. Bring a napalm and use it after bomb damage your guys - they will restore 50% health. Shield, regenerate and other passive skill is very usefull.
how to beat the last boss, i have accuracy heavy 5%, middle 40% and 66%and i cant hit it!, how to unlock the last thing to craft? Do you have some idea?