Nice and to the point! Chaining shot jump and shot feels satisfying. It would be even nicer with FX on the gunshot and on hit. Some victory sequence at the end too.
I was a little cautious at the end, using shot jump to slow down my descent and check if there is a platform below, but I suppose it was the point.
The most dangerous part was going up with the risk of hitting an enemy! I had to chain shot jump and shoot up to be safe!