Matthew R. Partridge did a coversation of the old Commodore 64 game “Thrust” and send it to GBAdev. The changes compared to the C64 are:

Differences to Thrust (C64)

The door opens the wrong way on level 5.The teleport effect is missing.There should be 2 types of fuel pod, there is only one. There are no collisions between the ship or orb and static objects.The particles for players bullets, limpet bullets and debris are all the same colour.