Complete stage 1 on the first loop (Settings>=Default and no co-op for all achievements)

Complete stage 2 on the first loop

Complete stage 3 on the first loop

Complete stage 4 on the first loop

Complete stage 5 on the first loop

Complete stage 6 on the first loop

Complete stage 1 on the second loop

Complete stage 2 on the second loop

Complete stage 3 on the second loop

Complete stage 4 on the second loop

Complete stage 5 on the second loop

Complete stage 6 on the second loop

Defeat Hibachi

Beat the first loop in one credit with the Type-A ship

Unlock the second loop by beating the first loop in one credit and dying two times or less

Unlock the second loop by beating the first loop in one credit and with a certain max HIT chain [See comments]

Unlock the second loop by beating the first loop in one credit and with a score of 50,000,000

Unlock the second loop by beating the first loop in one credit and getting the 13 bee bonus in at least 4 stages

Get all 13 bees in stage 1 without dying

Get all 13 bees in stage 2 without dying

Get all 13 bees in stage 3 without dying

Get all 13 bees in stage 4 without dying

Get all 13 bees in stage 5 without dying

Get all 13 bees in stage 6 without dying

Beat the first loop in three credits

Get a HIT chain of 150 in stage 1 on the first loop

Get a HIT chain of 250 in stage 2 on the first loop

Get a HIT chain of 50 in stage 3 on the first loop

Get a HIT chain of 250 in stage 4 on the first loop

Get a HIT chain of 350 in stage 5 on the first loop

Get a HIT chain of 300 in stage 6 on the first loop

Get a bonus of 67 ground stars at the end of stage 1

Get a bonus of 55 ground stars at the end of stage 2

Get the hidden 1Up

Make some flowers fully bloom in stage 4 as a tribute to a legendary developer

Get 100 Boss HITs out of a single laser bomb

Grab 10 big aerial stars during the boss fight in Stage 1, then finish it afterwards without dying

Grab 6 big aerial stars during the boss fight in Stage 2, then finish it afterwards without dying

Get the MAXIMUM Bomb Bonus to x5

Beat the boss of stage 4 without dying or using bombs

Beat the boss of stage 5 without dying or using bombs

Beat the boss of stage 6 without dying or using bombs

Beat the boss of stage 3 without dying or using bombs

Reach a score of 100,000,000 in one credit

Beat the first loop in one credit with the Type-B ship

Beat the first loop in one credit with the Type-C ship

Clear the first and second loops in one credit

Get the No Miss bonus in stage 1 on the first loop

Get the No Miss bonus in stage 2 on the first loop

Get the No Miss bonus in stage 3 on the first loop

Get the No Miss bonus in stage 4 on the first loop

Get the No Miss bonus in stage 5 on the first loop

Get the No Miss bonus in stage 6 on the first loop

Get the No Miss bonus in stage 1 on the second loop

Get the No Miss bonus in stage 2 on the second loop

Get the No Miss bonus in stage 3 on the second loop

Get the No Miss bonus in stage 4 on the second loop

Get the No Miss bonus in stage 5 on the second loop

Get the No Miss bonus in stage 6 on the second loop

From a new game, power up the weapon to max without dying