At the end of Episode 5, the game becomes a text adventure (no pictures). There are four areas: the area you start in, to the east of where you start, to the northwest of where you start, and down from where you start. There are nine items that you need to use your +2 sword on.
In the starting area:
1. Use...+2 sword...with Respect for Living Things.
2. Use...+2 sword...with Internet.
3. Use...+2 sword...with Max (can be done in any area).
In the east area:
4. Use...+2 sword...with Bosco's.
In the northwest area:
5. Use...+2 sword...with Overly Cute Kittens.
6. Use...+2 sword...with Nauseating Lake.
7. Use...+2 sword...with Jewel-Encrusted Idol.
8. Use...+2 sword...with Rare Foil Card.
In the down area:
9. Use...+2 sword...with Corporate Presence.
NOTE:This solution belongs to PFC Nicholas Angel and it was taken from www.xbox360achievements.org. All credit to him, I just copied it here, so more people can see it. Thanks for reading.