Stocking more than 9999 money (99.99 million yen) results in game over.
Sounds Panasonic FS-CA1 MSX-AUDIO which is referred to as "A1 Synth".
Agom which is displayed in the loading screen and miscredited as the game developer's name by many sources is the fictional loan company within the game. It is the satirical reference to both Acom the existing loan company and Omega System the real developer.