Huh? Stones that form a letter?
A dead end with some good stuff hidden
Another boss battle: this one doesn't look very friendly...
Area one, probably underwater
After you beat a corridor's boss the entrance explodes preventing you from entering again
A save room (actually showing a VERY long and detailed password)
Using one of the special weapons to deal with a sub-boss
Infinitely multiplying spiders, better avoid fighting these
Area two boss, and another sea creature
There are rooms that provide insights on how to unlock certain corridors
The formidable, deadly boss of Area three, requiring ultimate shmup skills
Area four and the enemies are ugly
The boss of Area four. It may be formidable until you figure out what works best against it
There are optional corridors that often yield goodies, like this chip upgrade (extremely useful)
Avoiding volcanoes in Area six
Soon things get out of control and we find ourselves in an area that looks like a living organism
Hey, don't look at me like that!
Area nine and the enemies are very hard to kill
In "TGL" mode you are automatically awarded with upgrades between the shoot-'em-up levels.