BULLET SOUL

Like the achievement says, you need to get a total of 500 bonuses when playing. You can play any game mode of Regular, Bancho, Caravan, Version B or Version B Bancho, all the bonuses earned in those levels count towards the achievement.

Below a list of all bonuses. I've taken the list from playing Version B and only a few of the below are not available in Regular or Bancho. I believe I missed a few bonuses, let me know via comments if you know of one that I missed.

BTW, you need to stack up those bonuses to get platinum medals.

Stage 1:

10000 Special Bonus
Destroy the 4 mid sized enemies (after 1st weapon pickup) simultaneously after they lined up

100000 - Special Bonus
shoot off left and right parts of first boss for

30000 - Destruction Bonus
let the building destroy the large spider robot on the left

30000 - Destruction Bonus
let the building destroy the large spider robot on the right

10000 Special Bonus
Destroy the 4 mid sized enemies (after 1st weapon pickup) simultaneously after they lined up

20000 - Special Bonus
Destroy all enemies in the fast pace section on the left

100000 - Special Bonus
shoot off both legs and arms of 2nd midboss before destroying

40000 - Secret Bonus
Destroy midboss fast enough to kill red enemies coming behind him

80000 - Special Bonus
Kill mirrored enemies at the same time

100000 - special Bonus
finish level without being hit & destroying all parts of boss

Stage 2:

10000 - Secret Bonus
destroy large asteroid with enemy on it

10000 - Secret Bonus
destroy large asteroid with enemy on it

10000 - Secret Bonus
destroy large asteroid with enemy on it

20000 - special Bonus
destroy all large and small asteroids

500 - Mystery Bonus
destroy invisible green box on right

20000 - destruction Bonus
destroy coupling on right

20000 - destruction Bonus
destroy two couplings on middle/left

20000 - destruction Bonus
destroy 2 couplings on right

1000 - Mystery Bonus
destroy invisible green box on right(?)

30000 - special bonus
destroy all components of mid boss before destroying it

4000 - Mystery Bonus
destroy invisible green box behind mid boss

10000 - Mystery Bonus
destroy invisible green box on right of next platform

20000 - Destruction Bonus
destroy 4 couplings on middle/right

40000 Mystery Bonus
destroy invisible green box on left

80000 Mystery Bonus
destroy invisible green box on right

80000 Special Bonus
destroy twin stars simultaneously

20000 Special Bonus
destroy all enemies & midboss elements

80000 Special Bonus
destroy twin stars simultaneously

Stage 3:

30000 - Special Bonus
destroy all parts of snake before destroying its head

20000 - Secret Bonus
destroy small egg pod on left and kill all 4 emerging (red) enemies

20000 - Secret Bonus
destroy small egg pod on left and kill all 4 emerging (red) enemies

20000 - Secret Bonus
destroy small egg pod on left and kill all 4 emerging (red) enemies

20000 - Secret Bonus
destroy small egg pod on left and kill all 4 emerging (red) enemies

60000 - Secret Bonus
destroy large egg pod coming from right and all bugs coming out

30000 - Secret Bonus
Destroy the (former) Robot mid boss (go to left and shoot)

????? - ????
do something with the enemies appearing after the mid boss

30000 - Special Bonus
do enough damage to midboss before it falls off the cliff

30000 - Special Bonus
destroy all parts of snake before destroying its head

Stage 4:

10000 - Secret Bonus
destroy large asteroid with enemy on it

10000 - Secret Bonus
destroy large asteroid with enemy on it

10000 - Secret Bonus
destroy large asteroid with enemy on it

10000 - Secret Bonus
destroy large asteroid with enemy on it

20000 - special bonus
destroy all large and small asteroids

60000 - Mystery Bonus
quickly destroy mid boss in hyper space section

80000 - Special Bonus
destroy all components of mid boss (I think ...)

70000 - Special Bonus
destroy all 4 turrets of space station before taking it down

50000 - Special Bonus
destroy all turrents (1st, 2nd, 4th) of battle ship before destroying bridge

50000 - Special Bonus
kill all components of mid boss (I think ...)

50000 - Special Bonus
kill all components of mid boss (I think ...)

50000 - Special Bonus
kill all components of mid boss (I think ...)

100000 - Special Bonus
(Destroying all parts of end boss?)

Stage 5:

30000 - Special Bonus
Quickly destroy blue spider robot on right

30000 - Special Bonus
Quickly destroy blue spider robot on middle/left

30000 - Special Bonus
quickly destroy blue spider robot in middle/left

30000 - Destruction Bonus
let bridge collapse (left and right anchor destroyed)

100000 - Special Bonus
destroy all parts of mid boss

200000 - Special Bonus
destroy all parts of final boss (and maybe don't get hit?)