Riley is not foreign to fighting without all of his 5 senses. He was, however, foreign to fighting someone who was physically stronger than him without all of his 5 senses…
…and it was glaringly obvious not only to Marleen, but also to the audience who were watching their fight intensely.
"You are going the wrong way—Never mind, you can't even hear me."
Marleen could really only let out a sigh as she watched Riley's dislocated arms flail around everywhere. Riley truly could not see and hear anything, and as Marleen reads his mind, she also discovers that he was also doing his best to not feel or sense anything at all. After all, Riley's senses were actually much higher than most of the other gods in the Domain — an ensemble of the traits of all the abilities he had received.