Always make a backup copy of your game file(s):

"\Coktel\Adiboo & the Energy Thieves\ADBNRJ.1"
"\Coktel\Adiboo & the Energy Thieves\ADBNRJ.0"

UnRAR the archive to the ROOT directory of the drive where the game is installed (yes, the game strangely stores saves there). Example - F:\ C:\ Always unRAR with full paths.

Load the Adventure named "Adiboo Land 07:25"

Choose any level to play on.

The game is a small action adventure title with mostly Mini-Games.