Here are some cheats and tips for the game Relentless: Twinsen’s Adventure.
Full items:
Collect the items from a room. Exit the room and return to re-collect the
items.
Full health and jetpack power:
Press B + I + G.
Display coordinates:
Press [Ctrl] + [Alt] + [Right Shift] + [F12].
Hidden tunnel:
In the temple of Bu on White leaf Island, go under the first lift (near
the two guards). There should be a tunnel that leads to the section with
the knives and statues that shoot fireballs.