Done. Okay?

Thanks :).

In the meantime I have a fat gorilla as an invincible boss.

How does that actually work with the bar at the top left? I can always add points through food, but the bar has already reached the end. Previously I could level up two or three times (?), that is, new skills were acquired, but these are now finished - more is not possible.
Does it benefit me in battle when I eat a lot of food that add a lot of points (and do I get stronger, although I do not see it)= - or does it not matter now?

Also, sometimes in dialogues there is an option "Kay or Yu have gained determination". Does this also have an effect in combat?

"Determination" will give an effect to the ending of the game.

Thanks. I hope it will be a good ending.

I actually have the feeling that they get stronger in battle. I'm sure that has something to do with the left loading bar. Points are added with every meal, but I can't see the progress. However, the enemies also become stronger, so the effect is hardly noticeable. I'm surprised that the food bar hardly plays a role. Even when Kay and Yu are hungry, everything happens as usual. Often you can't get to a campsite right away because the bridges are blocked.

The bridgeheads are often on high rocks. When you enter the island, you can't go back immediately. First you have to clear a flow stream to get back up the mountain or you have to open a new bridge. That's why your stomach is always pretty empty at the end...