2 of them are in the "Main" area, and the 3rd is in the "White" Area. Also, try to mess around with the "Dash" blocks when in the White area. Goodluck!
Just one thing: Today I completed the game but only discovered 1 out of 3 secrets.
Now I just came home and wanted to find the remaining secrets but it just started a new game.
So please make it able to continue the game after completing it.
@Alobarnon: Do you mean watching the videos?
instructions only tell me how to give up a mission, but not really much about shooting or anything else.
Watching videos to be able to play a game is kind of boring, you know?
When you get near the end , it becomes nearly impossible .
Enemies survive 3 or 4 shots from the maxed "boss killer" and there are around 30 enemies at one time.
That's really hard, man!
2 of them are in the "Main" area, and the 3rd is in the "White" Area. Also, try to mess around with the "Dash" blocks when in the White area. Goodluck!