Underfell is an Au where monsters don't have mercy for humans. It has stronger language than Undertale, so be careful if you play a game of it. Not to be mistaken for Hardtale! Sans. Fell! Sans is the Sans from Underfell ( https://undertale-au.fandom.com/wiki/Underfell).
Many of his attacks are just stronger versions of Sans's attacks.
"its a terrible day outside"
"plants are dying, monsters are hiding"
"on these days, kids like you"
"are gonna have a GREAT time!"
-beginning of round Music: THEOVANIA by Beny1C03
| Attacks | Information | Cool Down | Special Effects |
|---|---|---|---|
| Bone Throw | Throws 10 red and orange bones wherever the player is facing and deals 4 damage per hit | 5 Seconds | KR |
| Fell Bone Attack | Summon a lot of orange or red bones in separate lines of bones that come from the sides of the corridor and deals 8 damage per hit | 120 Seconds | KR/ orange means to move if caught in attack |
| Gaster Blaster | A creature with a red glowing eye appears and shoots a red beam wherever the Sans clicked and deals 2 damage per hit | 5 Seconds | KR |
| Great Time blasters | Many gaster blasters appear in a large circle and aim toward the middle (the place where the Sans clicked and do 2 damage per blaster per hit | 4 Seconds | KR |
| Force | Sends every person the Chara team away from the Sans | 16 Seconds | None |
| bone zone | summon a red square that will fill with bone after 1 second and deals 3 damage per hit | 8 seconds | KR |
Death cutscene
Sans: guess that's it then, huh.
Sans: ...
Sans: well i'm going to grillby's. (Fade to dust)
All the former attacks of Fell! Sans's attacks were just stronger versions of Sans attacks.
Music: THEOVANIA by Beny1C03
| Attacks | Information | Cool Down | Special Effects |
|---|---|---|---|
| Bone Barrage | Throws 10 red and blue bones wherever the player is facing | 5 Seconds | KR |
| Fell Bone Attack | Summon a lot of blue or red bones in separate lines of bones that come from the sides of the corridor | 120 Seconds | KR/ Blue means to not move if caught in attack |
| Gaster Blaster | A creature with a red glowing eye appears and shoots a red beam wherever the Sans clicked | 5 Seconds | KR |
| Quad Blaster | 4 Gaster Blasters come in and shoot red beams in the form of a plus sign and aim toward the middle (the place where the Sans clicked) | 4 Seconds | KR |
| Force | Sends every person the Chara team away from the Sans (does 1 damage) | 16 Seconds | None |
