The first game you mentions is called Alien Fish Finger. It's
a very addictive game with great gameplay. I only ever had
the demo though. One of the few games I played through
and through several times just because the controls were
so nicely setup.
The second you mention is Damage. It's freeware
nowadays and the full game can be downloaded legally from
the developers homepage. I bought it at the time though.
It's very good and funny, but hideously difficult once you
quit playing around and try to complete some part of it - I
have never found any way to heal, all damage stays. The
drugs you can take to boost your health all kill you after
some specified time...?
.
SlimJim