"I could get used to this." Paperjam Frisk reacting to their new form.
"I probably couldn't." - Gradient!Chara reacting negatively to their new form.
Paper Jam Frisk and Gradient!Chara are a "fusion" of Gradient Sans and Paperjam with a Frisk and Chara. They are anomalies, and are being hunted by Error!Sans. However, anything on this page is not canon to Paperjam, Gradient, Error!Sans or Ink!Sans.
While erasing timelines, Paperjam had come across Frisk and Chara (Chara was an anomaly, as this anomaly timeline had Chara living). They started fighting Paperjam, but eventually lost and "killed" them. Paperjam, realizing that the two humans' SOULs had unimaginable power, and tried absorbing them. However, their determination kept them alive in a Pocket Universe. Meanwhile, Gradient is in the same timeline. Both are unaware of who they are, and start fighting out of confusion. Ink from Gradient falls onto the SOULs. Frisk and Chara, finally with enough power to escape from their Pocket Dimension, came out. However, due to the paint splattered on their SOUL, Frisk woke up with the reminiscent of Paperjam, and Chara with the reminiscent of Gradient. They both have similar abilities to Paperjam and Gradient.