Hadronic observables are examined in search for signatures of critical beha
vior in quark-hadron phase transition. The 2D Ising model is used to simula
te hadronic cluster formation on the surface of the expanding cylinder in a
heavy-ion collision. Two measures involving the fluctuations of the produc
ed hadrons in bins of various sizes are investigated. They are found to exh
ibit the canonical power-law behavior near the critical temperature. Final-
state randomization is found not to have significant effect on the critical
exponents.