The final game in the series, Zero 4 continues to innovate on its formula and attempts to try new things with all of its systems. While the new Chip system is a bit frustrating, the appeal of mixing robot parts to make things is still alluring to me. Z4's Cyber Elf system is probably my favorite in the whole series, and the new Zero Knuckle could make for a defining feature for a game if it wasnt overshadowed by the incredibly fun Z-Saber and Buster. This was my favorite game in the Zero series and highly recommend.