The player placing the new token can remove one of the tokens of that type from the board and re-place it through their card / ability.
How does drop work? I simply have to be adjacent to the drop zone?
You must land on the drop zone in order to drop collectibles to qualify for “dropping it off” in a scenario. If you are just dropping a collectible on the ground because you don’t wish to carry it anymore it can be placed on any adjacent space that you can reach, including diagonally. If you are not standing on a wall yourself you cannot drop something onto a wall.
Can you tunnel/teleport to tiles which are occupied by other players/sheep/etc?
Yes. Your hero counts as having landed on top of them. See rules for jumping onto other heroes.
Can tokens be placed on water currents?
Yes. There are no restrictions on placing tokens in water.
Can tokens be placed in pits?
Only wall tokens (not broken wall tokens) can be placed in pits. However, a wall placed in a pit can be broken and then function just like a normal land space.
When you activate a card or token with a specific search icon (food/pet), do you immediately search or wait until the exploration phase?
Immediately. NOTE: If one or more cards of that card type are in the lineup you must explore one of those cards.
Rules state, the Movement ends after teleporting/using a tunnel. Is it allowed to teleport onto another teleporter or a tunnel and use that one in the same turn?
Yes. The teleporters act the same as board elements. Board elements must always be resolved before movement can officially “End”.
When a teleporter explodes, will the teleporter token be removed after the explosion?
Yes, it is destroyed, so it is removed.
When a teleporter explodes, does it actually explode (destroy walls in a Radius of 1 Field, push away players, etc.)?
Yes.
When I step onto a Teleporter and roll (Q), the Teleporter explodes and I go nowhere. Does my movement still end like if I would have teleported?
Yes