This game you really need to Master... If you think you walk trough this without a problem... You gonna DIE... (16.000.0000.00 + deads) total... Lawl... Sick.
Go watch GamesDoneQuickly on YouTube... They walk trough it like its nothing... But like I sayed.. Its all about Mastering,repeat,weight,how to farm souls.. Etc,etc...
2 other comments
We get there, one way or another... Trust me...
Congrats on the achievement! I have the 1st game but haven't played it yet. I heard they are really tough games though.
Reach the second save point in the CORE. - Undertale
Reach Hotland 3F. - Undertale
Reach Hotland 2F. - Undertale