Ultra Operation No. 1

in the first Ultraman adventure, (Shin) Hayata crashes into Ultraman's "ship".  to save Hayata's life, Ultraman merges with him.  he gives him the Beta Capsule to use in cases of extreme emergency.

a good introduction to Ultraman, the Science Patrol and some of their various weapons and ships, including the Jet VTOL and the Sub VTOL.

the first monster our hero faces on Earth is the one he was chasing, Bemular.  Bem has never impressed me much, mostly due to his rather strange design (the arms look pretty silly).  Ultraman was chasing Bemular to take him to justice. 

overall it's a good introduction to the series.