Ideas with Redstone

When you shoot the flares, they "go out". The effect is achieved by a command block removing the flare.

This device manages to teleport animals.

This circuit only gives a signal if the right items are placed in the right places in the chest.

The picture shows only the blocks that are necessary for the light switch. When you press the switch, the light is switched on or off.

A jump and run in the style of the app Temple Run. So vines, ruins and time pressure!
Because of the NPC world in MC, instead of monster chasing, a path breaking away motivates.
More ideas for elements are in the description.

A (relatively complex) trap where an arrow is fired from a dispenser when an NPC steps on the pressure plate. If he leaves the pressure plate, he is pushed back by a piston, so the whole thing repeats until death.

After the lore is started, it stops relatively randomly at a site that determines the winner.

Mario replicated from colorful wool. Pistons let the hand go up and down.

A bridge that is permanently rebuilt by producing new paving stone. Can be combined with traps.

This is a Redstone lantern that is activated and deactivated fully automatically.