Correct stream minor visual artifacts

[Ian Ballantyne]

The stream (53761fde) contains a few minor visual errors, which do not affect the benchmark, but are visible during the test:

• Overlapping characters
• Camera clipping
• Missing scenery
• Enemy hit animation

[Ian Ballantyne]

Ordered priority:

1. Missing scenery
2. Overlapping characters
3. Enemy hit animation
4. Camera clipping

[Ian Ballantyne]

Fixed 1) & 2) in stream: 537d6615. 3) & 4) have lower priority.
Commit: 0b43c7e

[Yota Wada]

fix confirmed.