It is up to the player to use his allergies to help him traverse the dangerous world, turning Thomas' weaknesses into strengths. Different allergens have different effects on Thomas - radically changing how he interacts with the. There is just one tiny little issue; Thomas suffers from terrible (and we mean TERRIBLE) allergies. Help Thomas the allergic mailman gather all his lost letters. In Hayfever, the player takes control of Thomas; a young postman with a strong sense of pride in his work.
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