I had no idea that developer Ikiki is one prolific motherfucker, since all I knew of his work was Nikujin. Check out this page of all this games. Holy hell, this guy is like the Takashi Miike of indie games. And I vow that I shall play them all and review them on this site!
Hakaiman (direct download), the second of his games I’ve played (and considered to be one of his best) is a top-down espionage game. There are six missions in total, that have you stealing the plans, infiltrating the base, etc., with nothing but a machine gun, a handful of grenades, and your gigantic brass balls at your disposal.
Whether you want to go in guns blazing or silently snap necks is up to you, but guards are thankfully quite simple-minded and, unless they see you, will not actively seek you out (and even then, for only a short while). They will also respond to loud noises, like explosions. It’s not very realistic, but it makes the game infinitely more fun and playable.
The lowdown is that this game is really, really sweet, and the many ways you can kill your opponents and yourself make it very replayable. There’s even a high score system that tracks your speed and other factors (types of kills, perhaps?). And unlike Nikujin, which is the gaming equivalent of trying to pick up a glass ball with chopsticks, Hakaiman is totally beatable.
I loved this game so much that I even made a walkthrough for it, with screenshots of every level, before and after the carnage.
Controls and hints in the extended.
X – Change Weapon (Hands or Gun)
Z – Throw Grenade (hold to prime) or Reload
Shift – Punch/use or fire gun
Ctrl – Hold to strafe
J – Commit suicide (in a giant explosion)
Punch a guard from the back or side to snap his neck silently.
Some walls are breakable with grenades.
Turrets can be destroyed if you drop a grenade right under them.
Guards respond to loud noises.
Guards flee from grenades.
On most levels there is a secret item that gives you a 1-up when you complete the level!