Game: Play Spacecraft, a free online game on Kongregate

Buying adds cash
d2 66 ?? a1 61 ??
d2 66 ?? a0 61 ??

You can always build ships, your enemy never can
66 1a 5d 04 66 04 66 73 d1 66 03 b0 48
66 2d 24 00 02 02 02 02 02 02 02 ab 48

Invincible mothership
d2 a1 61 34
d2 a0 61 34

Invincible ships
5e 18 27 68 18
5e 18 26 68 18

Credits go to various people