Otto Enjoys His Piano Car (2012)
Otto Proto crawlin (2013)
Otto Crawling (2013)
Otto on the Swing (2013)
Otto Watching the Ceiling Fan (2013)
What's Your Name? (2013)
Outside in His Car (2013)
Swimming With Mom and Dad (2013)
Swimming With Grandma? (2013)
Otto Reads Robosauce (2017)