Talk:Tutorial: Leveling/@comment-29839456-20170909011436/@comment-24930367-20170909060924

The easiest is...yes, 3-2.

You can do 5-4 for higher EXP but tougher enemies.

Also you just need first node for that. No need for engine-boilers, unless you want to go all the way to the end and ended up costing more than what it need.