Hex edit the file ELVMCGA.EXE
(will only work on MCGA (VGA) ver!!!)

For unlimited lives:
----------------------------
Search for 2E FF 0E 01 1A
Change to: 90 90 90 90 90

Unlimited energy:
--------------------------
Search for 2E FF 0E 10 72
Change to: 90 90 90 90 90