I played Battletoads years ago and loved it. The hardest part was lv 11 in the with the orb chasing you while your on a unicycle. It was a hard game but most of it dealt with memory and reflexes. I finished that many times.
TMNT wasn't too hard except for the jump in the sewer on lv 3. Also watch out for Shredders gun since it kills you instantly.
Ninja Gaiden III was rough along with Timelord.







