fungame: I wanted to create a tournament with 2 games, Froglet and Ant Froglet. Whatever I try, the result is always a tournament with ALL games. Some nasty bug there or can someone help?

The solution requires some Quantum Mechanics knowledge. First, matter and anti-matter will annihilate one another if present in equal mass equivalences, producing a fantastic release of energy (see E = MC squared).

When you combine "Froglet" with "Anti-froglet", the subsequent energy release creates what is known as an Einstein-Rosen bridge (also known as a wormhole.) Under the right conditions, this may spawn a "white hole" the opposite of the well known infinite gravity well ("black hole"). As a black hole destroys matter, a white hole releases matter (and energy) back into the universe.

So, your froglet/anti-froglet pair produced this extra mass, and they came out as additional games that you did not specify.