Video call and gaming??? That is a heavily load, both require both the CPU and GPU going hard, as well as Microphones, speaker, Display, Audio chip etc... The phone is bound to get warm.
Coming soon: Samsung GALAXY Note 4 32GB Black
Samsung GALAXY S4 32GB Exynos Octa Black Mist
Apple iPad 4 16GB WiFi+LTE White
"World can't hold me, too much ambition"-Jigga