Rancer's Last Hope Mania's Aftermath is an unofficial sequel/AU of Undertale Monster Mania.
This game is unfinished, and currently stops progressing at: CORE.
Please bare to be patient with the updates.
NOTE: This game is expected you to have basic knowledge on what Undertale Monster Mania is and how the game works.
Extra Note: There's currently a cap to level 19 to avoid people from progressing extremely fast and ruining the next updates.