Straight On is a Minigame/puzzle map or the objective is to send the Villager toward a precise point. For that you can move the villager with the 4 wooden button also appear when you start a new game.
The difficulty is that the villager stop when he cross a block. You must use the terrain to send the villager on the objective
It's difficult to explain, So I made a video trailer:
You will notice there are a "special" blocks on the map begin triggered when the villager is on top.
Here are blocks:
Arrow: Change Villager's direction
Obsidian: Don't go on this bloc! he turn the villager into a witch
Piston: Powered by the stone preasure plate
Prismarine: He get up when the villager pass above this block.
Lapis-Lazulli: Change the size on the villager: he can pass under the wooden slab when he's small
Emerald: The villager stop when he pass above it
The map is composed of 15 Levels with a increasing difficulty