We have measured the cross section for π⁺π⁻ production in two-photon collisions using a data sample with an integrated luminosity of 85.9 fb⁻¹ collected with the Belle detector. The f₀(980) resonance is observed as a peak in the energy spectrum of the cross section. We also report preliminary results for γγ → π⁰π⁰ with two-photon center-of-mass energies ranging from 0.6 to 4.0 GeV, based on a 95 fb⁻¹ data sample. We find at least four resonant structures including a peak from f₀(980). In addition, there is evidence for χ_c0 production. We also make a preliminary discussion of the angular dependence and cross section ratio of γγ → π⁺π⁻ and γγ → π⁰π⁰.