Here is the full list of all 16 Jet Buster achievements.
Beat EX Boss Rush (Continues Allowed)
Beat Boss Rush (Continues Allowed)
Defeat the villain (Continues Allowed)
Beat Expert with No Continues
Complete Stage 6 on Expert (Continues Allowed)
Complete Stage 5 on Expert (Continues Allowed)
Complete Stage 4 on Expert (Continues Allowed)
Complete Stage 3 on Expert (Continues Allowed)
Complete Stage 2 on Expert (Continues Allowed)
Complete Stage 1 on Expert (Continues Allowed)
Complete Stage 6 (Continues Allowed)
Complete Stage 5 (Continues Allowed)
Complete Stage 4 (Continues Allowed)
Complete Stage 3 (Continues Allowed)
Complete Stage 2 (Continues Allowed)
Complete Stage 1 (Continues Allowed)